github package should respect tab width editor preferences

[jazeee]

Description

When viewing diff of a file, the github diff should respect atom settings for Tab Length or at least, use 4, which is the most common width.

Steps to Reproduce

1. Edit a file and include a \t hard tab in the file.
2. In Unstaged Changes, click on a changed file

Expected behavior:
Observe that the diff view shows the hard tab as defined in Atom Editor preferences Tab Length or default to 2 or 4 characters. (Nobody really uses 8 characters)

Actual behavior:
Observe that the diff view shows the hard tab as 8 characters.

Reproduces how often:
100%

Versions

atom --version:
Atom : 1.18.0
Electron: 1.3.15
Chrome : 52.0.2743.82
Node : 6.5.0
apm --version:
apm 1.18.1
npm 3.10.10
node 6.9.5 x64
python 2.7.12
git 2.7.4

[guilhermejcgois]

Some updates about it? That issue disturb us a lot :/

[rsese]

Also fixed by https://github.com/atom/github/pull/1176 @kuychaco?

[BinaryMuse]

Oo yes, thanks, we missed this one!